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HD 175054


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Speckle observations of visual and spectroscopic binaries. IV
This is the fourth paper of this series giving results of speckleobservations for 22 visual and 161 spectroscopic binaries. Theobservation was carried out by using the 212 cm telescope of San PedroMartir Observatory in Mexico on 7 nights from July 20 to July 26, 1991.We obtained fringes in power spectra of 19 visual and 11 spectroscopicbinaries (6 newly resolved ones) with angular separation larger than0.06 arcsec. We introduced a new ICCD TV camera in this observation, andwere able to achieve the diffraction-limit resolution of the 212 cmtelescope.

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观测天体数据

星座:望遠鏡座
右阿森松:18h56m34.38s
赤纬:-54°34'01.6"
视星:7.786
距离:781.25 天文距离
右阿森松适当运动:-9.7
赤纬适当运动:-9.8
B-T magnitude:7.843
V-T magnitude:7.791

目录:
适当名称   (Edit)
HD 1989HD 175054
TYCHO-2 2000TYC 8763-857-1
USNO-A2.0USNO-A2 0300-35117481
HIPHIP 92981

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